Kommentare
1

The authors report data from 90 patients with ureteral stones treated during a period of 78 months. This means that in average only slightly more than one patient (1.15) was treated each month or not more than 14 patients per year. In this group it was concluded that 56% were failures.

The failure rate is higher than expected and higher than in most other studies. The definition of failure is, however, difficult to understand, because disintegration of stones to fragments with a size of even 4 or 5 mm (in the ureter) are usually associated with a good chance of spontaneous passage and thus without the need of repeated intervention.. Although high BMI, large stone size and location in the mid ureter might have affected the outcome, it seems likely that improved results can be anticipated with increased operator experience and by optimizing the technique.

The authors report data from 90 patients with ureteral stones treated during a period of 78 months. This means that in average only slightly more than one patient (1.15) was treated each month or not more than 14 patients per year. In this group it was concluded that 56% were failures.
The failure rate is higher than expected and higher than in most other studies. The definition of failure is, however, difficult to understand, because disintegration of stones to fragments with a size of even 4 or 5 mm (in the ureter) are usually associated with a good chance of spontaneous passage and thus without the need of repeated intervention.. Although high BMI, large stone size and location in the mid ureter might have affected the outcome, it seems likely that improved results can be anticipated with increased operator experience and by optimizing the technique.
Hans-Göran Tiselius